package com.yfbao.web.pdf.service;

import com.yfbao.web.pdf.dto.ModificationDto;
import com.yfbao.web.pdf.dto.ModificationRequestDto;
import com.yfbao.web.pdf.dto.PageInfoDto;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

@Slf4j
@Service
public class ModificationServiceImpl implements ModificationService {

    @Override
    public void applyModifications(ModificationRequestDto request) {
        // 实现修改应用逻辑
        validateRequest(request);
        applyTextReplacements(request.getModifications());
        updateDocumentState(request.getPageInfo());
    }

    private void validateRequest(ModificationRequestDto request) {
        if (request.getModifications() == null || request.getModifications().isEmpty()) {
            throw new IllegalArgumentException("修改列表不能为空");
        }
        // 更多验证逻辑...
    }

    private void applyTextReplacements(List<ModificationDto> modifications) {
        modifications.stream()
                .filter(mod -> "text".equals(mod.getType()))
                .forEach(this::applyTextModification);
    }

    private void applyTextModification(ModificationDto mod) {
        // 具体的文本替换逻辑
        log.info("应用文本修改: " + mod.getNewText());
    }

    private void updateDocumentState(PageInfoDto pageInfo) {
        // 更新文档状态
    }

    @Override
    public List<ModificationDto> getModificationsByPage(Integer page) {
        // 根据页码获取修改记录
        return new ArrayList<>(); // 实际从数据库查询
    }
}
